This section is from the book "The Gardener's Monthly And Horticulturist V23", by Thomas Meehan. See also: Four-Season Harvest: Organic Vegetables from Your Home Garden All Year Long.
The dark colored remains of the small seedlike insects seen upon the skins of many oranges, according to Professor C. V. Riley, the Government Entomologist, are known vulgarly as the long or mussel-shell scale, and technically as Mytilapsis Gloverii, Packard.
"This insect," Professor C. V. R. says," is in all probability confined to the genus Citrus, to which our orange belongs, and has been introduced into Florida from the Old World. It is by far the most dangerous species of scale insects known to infest the orange tree, and when very numerous most seriously affects its growth and health." You will find an account of this species, with illustrations, in a recently published pamphlet on orange insects, by William Ash-mead, of Jacksonville, Florida, pp. 1-13.
An unusual condition of things was noticed within a Valencia orange after learning the above facts. The core, which in properly developed fruit is a cord of soft white tissue, had in this instance become very much enlarged, and was composed of a number of folds overlaid by a skin, similar in color and otherwise to that covering the outside of the orange.
The golden color of this enclosed epicarp surprised me more than did its abnormal position. It would seem natural to suppose that the absence of light would have blanched it.